Practicing Self-Care. 1  1. Take care of yourself. There are many small steps to this one action. 2  2. Put care into your appearance. You don't have to look like Brad Pitt to start building your self confidence. 3  3. Exercise regularly. Part of taking care of yourself is getting exercise.  4. Sleep well.
Stationary Waves. Stationary or standing waves are formed in a medium when two waves having equal amplitude and frequency moving in opposite directions along the same line, interfere in a confined space. Generally, such waves are formed by the superposition of a forward wave and the reflected wave. Both longitudinal and transverse types of waves can form a stationary wave. When reflection occurs at a free end, there is no reversal of phase. i.e., a crest returns as a crest and a trough as a trough.
The expanding air cools, and as this cooling occurs, the water vapor condenses (changes) from a vapor to a liquid. Many tiny water droplets form and a cloud is born.   Conditions have to be just right for clouds to form.louds are formed when water droplets contained in the air rise higher into the atmosphere. There they collect, until a cloud is formed. When water evaporates into the air, it hits the dew point temperature and sticks to smoke and dust particle in the air.